Oracle SNMP Support Reference Guide 
Release 8.0.5 
A64404-01
 
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B
Interpreting Variables of the Oracle Network Listener MIB

This appendix provides information to help you interpret individual variables in the private Oracle Network Listener MIB. Specifically, it includes sections covering MIB variables in the following tables

For more information about the Oracle network listener, see Understanding SQLNet.

oraListenerTable

The oraListenerTable contains information about the generic network listeners installed on a managed node. A network listener is a server process that listens for connection requests for one or more databases on one or more network protocols. Monitoring a listener is important in order to ensure adequate database access.

Each entry in the oraListenerTable represents the network listener for a current database instance on the node. Each entry is indexed by oraListenerIndex. The current value of each oraListenerTable variable is retrieved from either configuration files or calculated from an internal buffer of the managed listener.

Table B-1 lists the variables included in the oraListenerTable.

Table B-1 oraListenerTable Variables and Corresponding Object IDs

Variable Name  Object ID 

oraListenerIndex 

1.3.6.1.4.1.111.5.1.1.1.1 

oraListenerName 

1.3.6.1.4.1.111.5.1.1.1.2 

oraListenerVersion 

1.3.6.1.4.1.111.5.1.1.1.3 

oraListenerStartDate 

1.3.6.1.4.1.111.5.1.1.1.4 

oraListenerUptime 

1.3.6.1.4.1.111.5.1.1.1.5 

oraListenerTraceLevel 

1.3.6.1.4.1.111.5.1.1.1.6 

oraListenerSecurityLevel 

1.3.6.1.4.1.111.5.1.1.1.7 

oraListenerParameterFile 

1.3.6.1.4.1.111.5.1.1.1.8 

oraListenerLogFile 

1.3.6.1.4.1.111.5.1.1.1.9 

oraListenerTraceFile 

1.3.6.1.4.1.111.5.1.1.1.10 

oraListenerState 

1.3.6.1.4.1.111.5.1.1.1.11 

oraListenerNumberOfServices 

1.3.6.1.4.1.111.5.1.1.1.12 

oraListenerContact 

1.3.6.1.4.1.111.5.1.1.1.13 

 

A description of each of these variables follows.

oraListenerIndex

Syntax

INTEGER (1..2147483647)

Max-Access

read-only

Explanation

A numeric index, unique among all generic listeners on this managed node, as retrieved from the snmp.index.listener-name parameter of the SNMP.ORA configuration file. oraListenerIndex also serves as the primary index for the oraListenAddressTable.

Typical Range

varies, depending on the value set in the snmp.index.listener-name field of the SNMP.ORA file

Significance

very important

Related Variables

oraListenAddress

Suggested Presentation

not applicable

oraListenerName

Syntax

DisplayString

Max-Access

read-only

Explanation

Indicates the name of this generic listener, as retrieved from the LISTENER.ORA configuration file.

Typical Range

1 - 255 characters

Significance

very important

Related Variables

none

Suggested Presentation

icon or simple string

oraListenerVersion

Syntax

DisplayString

Max-Access

read-only

Explanation

Indicates the version number of this generic listener, in vendor-specific format. This value is retrieved from an internal listener table.

Typical Range

30 - 50 characters (physical limit is 255 characters)

Significance

less important

Related Variables

none

Suggested Presentation

simple string

oraListenerStartDate

Syntax

DisplayString

Max-Access

read-only

Explanation

Indicates the date and time at which this generic listener was started, as retrieved from an internal listener table. The format is date-month-year hours:minutes:seconds.

Typical Range

15 - 20 characters (physical limit is 255 characters)

Significance

less important

Related Variables

none

Suggested Presentation

simple string

oraListenerUptime

Syntax

TimeTicks

Max-Access

read-only

Explanation

Indicates the value of sysUpTime at the time the generic listener was started. This value is derived from the master agent, which counts the time in hundredths of a second since the master agent was started. The value of this variable should remain as a constant across the Listener's life span. A change in this variable indicates that the counter has been refreshed.

Typical Range

0 - 4249467295

Significance

important

Related Variables

none

Suggested Presentation

clock

oraListenerTraceLevel

Syntax

INTEGER (1 - 17)

Max-Access

read-write

Explanation

Indicates the level at which a Listener should be traced. A value of 4 means that tracing at the USER level is turned on; and 6 means that tracing at the ADMIN level is turned on. A value of 17 means that tracing is turned off.

Typical Range

enumerated 1 - 17

Significance

important

Related Variables

oraNavigatorTraceFile

Suggested Presentation

as an icon, or as a simple string of characters, OFF, USER or ADMIN

oraListenerSecurityLevel

Syntax

INTEGER (1) on, or (2) off.

Max-Access

read-only

Explanation

Indicates whether or not the generic listener is password-protected, as determined from the PASSWORDS_listener_name parameter of the LISTENER.ORA configuration file. If security is ON (1), the password is required to perform certain DBA tasks against the Listener using the Listener control utility.

Typical Range

enumerated 1 or 2

Significance

less important

Related Variables

none

Suggested Presentation

simple string

oraListenerParameterFile

Syntax

DisplayString

Max-Access

read-only

Explanation

Indicates the name of the Listener configuration file on the managed node, as retrieved from an internal buffer of the managed listener. Default is $ORACLE_HOME/network/admin/listener_name.ORA

Typical Range

40 - 70 characters (physical limit is 255 characters)

Significance

important

Related Variables

none

Suggested Presentation

simple string

oraListenerLogFile

Syntax

DisplayString

Max-Access

read-only

Explanation

Indicates the directory for the log file that is automatically generated for listener events, as retrieved from the LOG_DIRECTORY parameter of the LISTENER.ORA configuration file. Default is operating system specific: on UNIX, for example, it is $ORACLE_HOME/network/log/listener_name.log.

Typical Range

20 - 70 characters (physical limit is 255 characters)

Significance

less important

Related Variables

none

Suggested Presentation

simple string

oraListenerTraceFile

Syntax

DisplayString

Max-Access

read-only

Explanation

Indicates the name of the file to which trace information is written, as determined from the TRACE_FILE parameter of the LISTENER.ORA configuration file. Default is $ORACLE_HOME/network/trace/listener_name.trc

Typical Range

20 - 70 characters (physical limit is 255 characters)

Significance

less important

Related Variables

oraListenerTraceLevel

Suggested Presentation

simple string

oraListenerState

Syntax

INTEGER (1) up, or (2) down

Max-Access

read-only

Explanation

Indicates the current state of the generic listener, as retrieved from an internal table. The DOWN value (2) indicates that the generic listener is not available for any use, but is known to the agent. The UP value (1) indicates that the generic listener is running and available for generic use. This value would be inspected by an agent on receipt of an oraListenerStateChange trap.

Typical Range

enumerated 1 or 2

Significance

important

Related Variables

oraListenerStateChange

Suggested Presentation

simple string or icon

oraListenerNumberOfServices

Syntax

INTEGER (0..2147483647)

Max-Access

read-only

Explanation

Indicates the number of different types of services, dedicated server, dispatcher, or prespawned shadow, configured with the listener:

Typical Range

1 - 25, depending on the configuration parameters

Significance

less important

Related Variables

none

Suggested Presentation

simple string

oraListenerContact

Syntax

DisplayString

Max-Access

read-write

Explanation

Free-form text providing contact information for this managed listener, including name, telephone number, email address, for example. This value is retrieved from the snmp.contact.listener_name parameter of the SNMP.ORA configuration file.

Range

0 - 255 characters

Significance

less important

Related Variables

none

Suggested Presentation

simple string

oraSIDTable

The oraSIDTable contains information about the status of connections to a current database instance. This information is important to monitor in order to ensure that clients seeking access to a database have that opportunity.

Each entry in the oraSIDTable represents a current database instance for whom the listener listens. Each entry is indexed by oraSIDName.

Table B-2 lists the variables included in the oraSIDTable.

Table B-2 oraSIDTable Variables and Corresponding Object IDs

Variable Name  Object ID 

oraSIDListenerIndex 

1.3.6.1.4.1.111.5.1.5.1.1 

oraSIDName 

1.3.6.1.4.1.111.5.1.5.1.2 

oraSIDCurrentConnectedClients 

1.3.6.1.4.1.111.5.1.5.1.3 

oraSIDReservedConnections 

1.3.6.1.4.1.111.5.1.5.1.4 

 

A description of each of these variables follows.

oraSIDListenerIndex

Syntax

INTEGER (1..2147483647)

Max-Access

read-only

Explanation

A numeric index, unique among all of the generic listeners on the managed node, that associates a listener with a database it listens on. This value is retrieved from the snmp.index.listener_name parameter of the SNMP.ORA configuration file.

Typical Range

varies, depending on the value set in the snmp.index.listener-name field of the SNMP.ORA configuration file

Significance

very important

Related Variables

oraListenerIndex

Suggested Presentation

not applicable

oraSIDName

Syntax

DisplayString

Max-Access

read-only

Explanation

A unique name identifying a database instance. This SID is in the definition of the listener, as retrieved from the SID_NAME parameter of the LISTENER.ORA configuration file. oraSIDName serves as the primary index in the oraDedicatedSrvTable, oraDispatcherTable, and oraPrespawnedSrvTable; thus, an entry for any dispatcher, dedicated server or prespawned server which listens for the database instance identified by oraSIDName can be found.

Typical Range

1 - 25 characters (physical limit is 255 characters)

Significance

very important

Related Variables

oraDedicatedSrvIndex, oraDispatcherIndex, oraPrespawnedSrvIndex

Suggested Presentation

simple string or icon

oraSIDCurrentConnectedClients

Syntax

Gauge32

Max-Access

read-only

Explanation

Indicates the total number of clients currently connected through prespawned shadows and dispatchers to this database instance, as retrieved from an internal Listener table. When the value of oraSIDCurrentConnectedClients is approaching the value of oraSIDReservedConnections, the number of connection requests to this database instance is reaching the threshold (the reserved number of connections for clients on this database instance).

When the value of oraSIDCurrentConnectedClients equals the value of oraSIDReservedConnections, the incoming connection requests are redirected to dedicated servers. This may not be desirable, as a dedicated server requires more system resources than does a dispatcher or prespawned shadow.

Typical Range

0 - value of oraSIDReservedConnections

Significance

very important

Related Variables

oraDispatcherCurrentConnections, oraPrespawnedSrvCurrentConnections

Suggested Presentation

gauge

oraSIDReservedConnections

Syntax

Counter32

Max-Access

read-only

Explanation

Indicates the total number of reserved connections for clients through prespawned shadows and dispatchers to this database instance.

Typical Range

0 - 1,000, depending on the number of dispatcher and prespawned shadow processes for the database

Significance

very important

Related Variables

oraDispatcherMaximumConnections, oraSIDCurrentConnectedClients

Suggested Presentation

gauge

oraDedicatedSrvTable

The oraDedicatedSrvTable contains information about the dedicated servers provided by the managed listener. A dedicated server is a process that executes Oracle server code on behalf of a particular database user process. Monitoring a dedicated server is important in order to ensure that clients seeking access to a database have that opportunity.

Each entry in the oraDedicatedSrvTable represents a dedicated server associated with a current database instance on the managed node. Each entry is indexed first by oraSIDName, and then by oraDedicatedSrvIndex; thus, there can be a one-to-many relationship between a current database instance and the dedicated servers associated with it. By indexing first by oraSIDName, all dedicated servers associated with a given SID can be found using SNMP traversal operations (get-next and get-bulk). The current value of each oraDedicatedSrvTable variable is retrieved from internal listener buffers.

Table B-3 lists the variables included in the oraDedicatedSrvTable.

Table B-3 oraDedicatedSrvTable Variables and Corresponding Object IDs

Variable Name  Object ID 

oraDedicatedSrvIndex 

1.3.6.1.4.1.111.5.1.2.1.1 

oraDedicatedSrvEstablishedConnections 

1.3.6.1.4.1.111.5.1.2.1.2 

oraDedicatedSrvRejectedConnections 

1.3.6.1.4.1.111.5.1.2.1.3 

 

A description of each of these variables follows.

oraDedicatedSrvIndex

Syntax

INTEGER (1..2147483647)

Max-Access

read-only

Explanation

A numeric index, unique among all the dedicated servers, as retrieved from an internal listener table.

Typical Range

1 - 5, depending on the number of database instances for whom this listener listens

Significance

very important

Related Variables

oraSIDName

Suggested Presentation

not applicable

oraDedicatedSrvEstablishedConnections

Syntax

Counter32

Max-Access

read-only

Explanation

Indicates how many incoming connection requests this dedicated server has accepted since startup of this managed listener, as retrieved from an internal listener table.

Typical Range

0 - 4249467295

Significance

very important

Related Variables

oraDedicatedSrvRejectedConnections, oraDispatcherRejectedConnections, oraPrespawnedSrvRejectedConnections

Suggested Presentation

counter

oraDedicatedSrvRejectedConnections

Syntax

Counter32

Max-Access

read-only

Explanation

Indicates how many incoming connection requests this dedicated server has rejected since startup of this managed listener, as retrieved from an internal listener table.

Typical Range

0 - 4249467295

Significance

very important

Related Variables

oraDedicatedSrvEstablishedConnections

Suggested Presentation

counter

oraDispatcherTable

The oraDispatcherTable contains information on the dispatchers provided by the managed listener. A dispatcher is an optional background process present only when a multi-threaded server configuration is used. Monitoring a dispatcher is important in order to ensure that clients seeking access to a database have that opportunity.

Each entry in the oraDispatcherTable represents a dispatcher associated with a current database instance. Each entry is indexed first by oraSIDName, and then by oraDispatcherIndex; thus, there can be a one-to-many relationship between a database instance and the dispatcher processes serving it. Using this indexing method, all dispatchers associated with a given SID can be found by SNMP traversal operations (get-next and get-bulk). The current value of most oraDispatcherTable variables is retrieved from internal listener tables.

Table B-4 lists the variables included in the oraDispatcherTable.

Table B-4 oraDispatcherTable Variables and Corresponding Object IDs

Variable Name  Object ID 

oraDispatcherIndex 

1.3.6.1.4.1.111.5.1.3.1.1 

oraDispatcherEstablishedConnections 

1.3.6.1.4.1.111.5.1.3.1.2 

oraDispatcherRejectedConnections 

1.3.6.1.4.1.111.5.1.3.1.3 

oraDispatcherCurrentConnections 

1.3.6.1.4.1.111.5.1.3.1.4 

oraDispatcherMaximumConnections 

1.3.6.1.4.1.111.5.1.3.1.5 

oraDispatcherState 

1.3.6.1.4.1.111.5.1.3.1.6 

oraDispatcherProtocolInfo 

1.3.6.1.4.1.111.5.1.3.1.7 

 

A description of each of these variables follows.

OraDispatcherIndex

Syntax

INTEGER (1..2147483647)

Max-Access

read-only

Explanation

A numeric index, unique among all the dispatchers, as retrieved from an internal listener buffer.

Typical Range

1 - 5, depending on the number of dispatchers configured for the database instance

Significance

very important

Related Variables

none

Suggested Presentation

not applicable

oraDispatcherEstablishedConnections

Syntax

Counter32

Max-Access

read-only

Explanation

Indicates how many incoming connection requests this dispatcher has accepted since startup of this managed listener, as retrieved from an internal listener buffer.

When the value of oraDispatcherEstablishedConnections approaches the value of oraDispatcherMaximumConnections, this dispatcher is reaching the threshold (the greatest number of connection requests that can be accepted).

Typical Range

0 - value of oraDispatcherMaximumConnections

Significance

very important

Related Variables

oraDedicatedSrvEstablishedConnections, oraDispatcherMaximumConnections, oraDispatcherRejectedConnections, oraPrespawnedSrvEstablishedConnections

Suggested Presentation

counter

oraDispatcherRejectedConnections

Syntax

Counter32

Max-Access

read-only

Explanation

Indicates how many incoming connection requests this dispatcher has rejected since startup of this managed listener, as retrieved from an internal listener table.

Typical Range

0 - 4249467295

Significance

very important

Related Variables

oraDedicatedSrvEstablishedConnections, oraDispatcherEstablishedConnections, oraDispatcherState, oraPrespawnedSrvEstablishedConnections

Suggested Presentation

counter

oraDispatcherCurrentConnections

Syntax

Gauge32

Max-Access

read-only

Explanation

Indicates the number of connection requests this dispatcher is currently redirecting, as retrieved from an internal listener table. Monitoring oraDispatcherCurrentConnections and oraDispatcherMaximumConnections together indicates the load/activity of the dispatcher.

Typical Range

0 - oraDispatcherMaximumConnections

Significance

very important

Related Variables

oraSIDCurrentConnectedClients, oraDispatcherMaximumConnections

Suggested Presentation

gauge

oraDispatcherMaximumConnections

Syntax

INTEGER (1..21474836647)

Max-Access

read-only

Explanation

Indicates the greatest number of connection requests that this dispatcher can accept, as retrieved from an internal listener table.

Typical Range

0 - value of oraSIDReservedConnections

Significance

very important

Related Variables

oraDispatcherCurrentConnections, oraSIDReservedConnections

Suggested Presentation

gauge

oraDispatcherState

Syntax

INTEGER (1) blocked, or (2) ready.

Max-Access

read-only

Explanation

Indicates the current state of this dispatcher, as retrieved from an internal listener table. The BLOCKED value (1) indicates that the dispatcher is temporarily not accepting redirected connection requests. The READY value (2) indicates that this dispatcher is ready to accept any redirected connection requests.

Typical Range

enumerated 1 or 2

Significance

very important

Related Variables

oraDispatcherRejectedConnections

Suggested Presentation

icon or simple string

oraDispatcherProtocolInfo

Syntax

DisplayString

Max-Access

read-only

Explanation

Indicates the protocol for which this dispatcher listens, as well as protocol-specific information, as retrieved from the MTS_LISTENER_ADDRESS parameter of the INIT.ORA configuration file.

Typical Range

1 - 255 characters

Significance

important

Related Variables

none

Suggested Presentation

simple string or icon

oraPrespawnedSrvTable

The oraPrespawnedSrvTable contains information on the prespawned servers provided by the managed listener associated with the current database instance. A prespawned server is an optional shadow process created when the listener is started, and then available for making connections to the database. Prespawned servers reduce connect time by eliminating the need to spawn a shadow for each new connect request. Monitoring a prespawned server is important in order to ensure that clients seeking access to a database have that opportunity.

Each entry in the oraPrespawnedSrvTable represents a prespawned server associated with a current database instance. Each entry is indexed first by oraSIDName, and then by oraPrespawnedSrvIndex; thus, there can be a one-to-many relationship between a database instance and the prespawned servers serving it. Using this indexing method, all prespawned servers associated with a given SID can be found by SNMP traversal operations (get-next and get-bulk). The current value of most oraPrespawnedSrvTable variables is retrieved from internal listener buffers.

Table B-5 lists the variables included in the oraPrespawnedSrvTable.

Table B-5 oraPrespawnedSrvTable Variables and Corresponding Object IDs

Variable Name  Object ID 

oraPrespawnedSrvIndex 

1.3.6.1.4.1.111.5.1.4.1.1 

oraPrespawnedSrvEstablishedConnections 

1.3.6.1.4.1.111.5.1.4.1.2 

oraPrespawnedSrvRejectedConnections 

1.3.6.1.4.1.111.5.1.4.1.3 

oraPrespawnedSrvCurrentConnections 

1.3.6.1.4.1.111.5.1.4.1.4 

oraPrespawnedSrvMaximumConnections 

1.3.6.1.4.1.111.5.1.4.1.5 

oraPrespawnedSrvState 

1.3.6.1.4.1.111.5.1.4.1.6 

oraPrespawnedSrvProtocolInfo 

1.3.6.1.4.1.111.5.1.4.1.7 

oraPrespawnedSrvProcessorID 

1.3.6.1.4.1.111.5.1.4.1.8 

 

A description of each of these variables follows.

oraPrespawnedSrvIndex

Syntax

INTEGER (1..2147483647)

Max-Access

read-only

Explanation

A numeric index, unique among the prespawned servers configured for this managed listener, as retrieved from an internal listener table.

Typical Range

1 - 1,000, depending on the number of prespawned shadows configured

Significance

very important

Related Variables

none

Suggested Presentation

not applicable

oraPrespawnedSrvEstablishedConnections

Syntax

Counter32

Max-Access

read-only

Explanation

Indicates how many incoming connection requests have been accepted by the prespawned server since its startup, as retrieved from an internal listener table.

Typical Range

0 - 4249467295

Significance

very important

Related Variables

none

Suggested Presentation

counter

oraPrespawnedSrvRejectedConnections

Syntax

Counter32

Max-Access

read-only

Explanation

Indicates the number of connection requests this prespawned server has rejected since its startup, as retrieved from an internal listener table. If the value of oraPrespawnedSrvRejectedConnections is creeping up, oraPrespawnedState should be monitored.

Typical Range

0 - 4249467295

Significance

very important

Related Variables

oraDedicatedSrvEstablishedConnections, oraPrespawnedSrvEstablishedConnections, oraPrespawnedSrvState

Suggested Presentation

counter

oraPrespawnedSrvCurrentConnections

Syntax

Gauge32

Max-Access

read-only

Explanation

Indicates how many incoming connection requests currently being redirected by the prespawned server since startup of this managed listener, as retrieved from an internal listener table.

Typical Range

0 - 4249467295

Significance

very important

Related Variables

oraPrespawnedSrvMaximumConnections

Suggested Presentation

gauge

oraPrespawnedSrvMaximumConnections

Syntax

INTEGER (1..2147483647)

Max-Access

read-only

Explanation

Indicates the greatest number of connection requests that this prespawned server can accept. The Listener updates this value in real time.

Typical Range

0 - 1,000, depending on the configuration

Significance

very important

Related Variables

oraPrespawnedSrvCurrentConnections

Suggested Presentation

gauge

oraPrespawnedSrvState

Syntax

INTEGER (1) blocked, or (2) ready.

Max-Access

read-only

Explanation

Indicates the current state of the prespawned server, as retrieved from an internal listener table. The BLOCKED value (1) indicates that the prespawned server is temporarily not accepting redirected connection requests. The READY option (2) indicates that the prespawned server is ready to accept any redirected connection requests.

Typical Range

enumerated 1 or 2

Significance

very important

Related Variables

oraPrespawnedSrvRejectedConnection

Suggested Presentation

alarm or icon

oraPrespawnedSrvProtocolInfo

Syntax

DisplayString

Max-Access

read-only

Explanation

Indicates the protocol on which this prespawned server listens, as well as protocol- specific information. This information is retrieved from an internal Listener table.

Typical Range

1 - 255 characters

Significance

important

Related Variables

none

Suggested Presentation

simple string or icon

oraPrespawnedSrvProcessorID

Syntax

DisplayString

Max-Access

read-only

Explanation

Indicates the process ID of the prespawned server, as retrieved from an internal listener table.

Typical Range

1 - 10, depending on the O/S (physical limit is 255 characters)

Significance

less important

Related Variables

none

Suggested Presentation

simple string

oraListenAddressTable

The oraListenAddressTable contains the addresses on which the listener is listening. These addresses are important to monitor when a Listener cannot come up during startup; these addresses can then be examined for the proper format.

Each entry in the oraListenAddressTable represents an address on which a given active listener is listening. Each entry is indexed first by oraListenerIndex, and then by oraListenAddressIndex; thus, there can be a one-to-many relationship between a listener and the addresses on which it is listening.

Table B-6 lists the variables included in the oraListenAddressTable.

Table B-6 oraListenAddressTable Variables and Corresponding Object IDs

Variable Name  Object ID 

oraListenAddressIndex 

1.3.6.1.4.1.111.5.1.6.1.1 

oraListenAddress 

1.3.6.1.4.1.111.5.1.6.1.2 

 

A description of each of these variables follows.

oraListenAddressIndex

Syntax

INTEGER (1..2147483647)

Max-Access

read-only

Explanation

A numeric index, unique among all of the addresses on which the listener is listening, as retrieved from an internal listener table.

Typical Range

1 - 5, depending on configuration

Significance

important

Related Variables

oraListenAddress, oraListenIndex

Suggested Presentation

not applicable

oraListenAddress

Syntax

DisplayString

Max-Access

read-only

Explanation

Indicates an address on which this listener is listening, as retrieved from the ADDRESS section of the LISTENER.ORA configuration file.

Typical Range

1 - 255 characters

Significance

important

Related Variables

oraListenerIndex

Suggested Presentation

simple string

oraListenerTraps

Table B-7 lists the oraListenerTraps variable.

Table B-7 oraListenerTraps Variable and Corresponding Object ID

Variable Name  Object ID 

oraListenerStateChange 

1.3.6.1.4.1.111.5.2.1.1.1 

 

A description of this variable follows.

oraListenerStateChange

Objects

{oraListenerState }

Explanation

Indicates that one of the listeners managed by this agent has changed its listenerState in a way that makes it less accessible for use.

Typical Range

2 (only)

Significance

very important

Related Variables

oraListenerState

Suggested Presentation

alarm



 
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